最新的解决方案。Flutter 2.0及以上

对于使用AppBar的用户:

/// WORKS on the screen where appBar is used
Scaffold(
      appBar: AppBar(
        systemOverlayStyle: SystemUiOverlayStyle(
          // statusBarColor: Colors.red, // You can use this as well
          statusBarIconBrightness: Brightness.dark, // OR Vice Versa for ThemeMode.dark
          statusBarBrightness: Brightness.light, // OR Vice Versa for ThemeMode.dark
        ),
      ),
     ), 

对于那些不使用AppBar的人:

将下面的代码放在根屏幕的构建功能上，以影响下面的所有屏幕:

void main() {
  runApp(MyApp());
}

// This widget is the root of your application.
class MyApp extends StatelessWidget {

  /// WORKS on every screen EXCEPT the screen in which appBar is used
  SystemChrome.setSystemUIOverlayStyle(
    SystemUiOverlayStyle(
      // statusBarColor: Colors.red, // You can use this as well
      statusBarIconBrightness: Brightness.dark, // OR Vice Versa for ThemeMode.dark
      statusBarBrightness: Brightness.light, // OR Vice Versa for ThemeMode.dark
    ),
  );
  @override
  Widget build(BuildContext context) {}
}

将下面的代码放在单个屏幕的构建功能上，只影响该屏幕:

class SingleScreen extends StatelessWidget {

  /// WORKS on a single screen where appBar is NOT used
  SystemChrome.setSystemUIOverlayStyle(
    SystemUiOverlayStyle(
      // statusBarColor: Colors.red, // You can use this as well
      statusBarIconBrightness: Brightness.dark, // OR Vice Versa for ThemeMode.dark
      statusBarBrightness: Brightness.light, // OR Vice Versa for ThemeMode.dark
    ),
  );
  @override
  Widget build(BuildContext context) {}
}

这个也可以

SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.dark);
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.light);

我不能直接在帖子中评论，因为我还没有必要的声誉，但作者问了以下问题:

唯一的问题是背景是白色的，但时钟，无线和其他文本和图标也是白色的。我不知道为什么!!

对于任何来到这个帖子的人来说，这是对我有用的方法。状态栏的文本颜色由flutter/material.dart中的亮度常数决定。要改变这一点，调整SystemChrome解决方案，如下所示来配置文本:

    SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
      statusBarColor: Colors.red,
      statusBarBrightness: Brightness.dark,
    ));

亮度的可能值为亮度。黑暗和光明。

文档: https://api.flutter.dev/flutter/dart-ui/Brightness-class.html https://api.flutter.dev/flutter/services/SystemUiOverlayStyle-class.html

对于那些有iOS和Android颜色不一致的问题的人来说，这个方法对我来说很管用:

import 'dart:io';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

return AppBar(
      systemOverlayStyle: (Platform.isIOS)
          ? SystemUiOverlayStyle.light
          : const SystemUiOverlayStyle(
            statusBarColor: pbsBlue,
            statusBarIconBrightness: Brightness.light,
            statusBarBrightness: Brightness.light,
          ),
      backgroundColor: Colors.blue,
      title: Text('Home'),
    );

请注意，这是AppBar可重用小部件的摘录。

当您不使用AppBar时，更改状态栏的颜色

首先导入这个

import 'package:flutter/services.dart';

现在使用下面的代码改变状态栏的颜色在你的应用程序，当你不使用AppBar

SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.dark.copyWith(

    statusBarColor: AppColors.statusBarColor,/* set Status bar color in Android devices. */
    
    statusBarIconBrightness: Brightness.dark,/* set Status bar icons color in Android devices.*/
    
    statusBarBrightness: Brightness.dark)/* set Status bar icon color in iOS. */
); 

在iOS中使用安全区域时，更改状态栏的颜色

Scaffold(
  body: Container(
    color: Colors.red, /* Set your status bar color here */
    child: SafeArea(child: Container(
      /* Add your Widget here */
    )),
  ),
); 

在主要的。飞镖文件 导入服务如下

  import 'package:flutter/services.dart';

在build方法中，在返回之前添加这一行

SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
    statusBarColor: Colors.orange
)); 

是这样的:

@override
 Widget build(BuildContext context) {
   SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
       statusBarColor: CustomColors.appbarcolor
    ));
    return MaterialApp(
    home: MySplash(),
    theme: ThemeData(
      brightness: Brightness.light,
      primaryColor: CustomColors.appbarcolor,
    ),
  );
 }